Step-by-step explanation:
A = (n × s × a)2 A = ( n × s × a ) 2
(120×6)2
240×12
2880
The perimeter of the Octagon is P = 30 feet
What is the perimeter of a polygon?The perimeter of the regular polygon with apothem and area is given by the equation
Perimeter of Polygon P = ( Area x 2 ) / Apothem
where apothem is a line from the center of a regular polygon at right angles to any of its sides
Given data ,
Let the perimeter of the octagon be represented as P
Now , the apothem a = 6 feet
The area of octagon A = 120 feet²
where Perimeter of Polygon P = ( Area x 2 ) / Apothem
P = ( 120 x 2 ) / 6
P = 30 feet
Therefore , the value of P is 30 feet
Hence , the perimeter of polygon is 30 feet
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Help? I will give brain list + 5 star rating and like on the profile
Answer:
7. Jamal and Steve finished the same amount of homework
8. 8/12 and 4/6
Hope this helps =]
4. A car traveled 110 miles in 2 hours.
What unit rate describes the speed of
the car?
Answer The question PLZZ no WEBSITE ANSWER
Answer:
The car is traveling 55 miles per hour
Step-by-step explanation:
Total miles divided by hours
110/2
55
Answer:
55 miles per hour
Step-by-step explanation:
110/2=55
1. Jake makes $11.00 per hour. He is getting a raise of 20% to his hourly pay. How much
will he make per hour after his raise? Show your calculation.
Answer:
$11,00 x ( 100% + 20%) = $13.2 /h
Step-by-step explanation:
Multiply.
Answer as a fraction. Do not include spaces in your answer.
Answer:
Multiply what?
Step-by-step explanation:
Find the slope of the line passing through the points D(10,8) and E(-4, 4)
Answer: 2/7
Step-by-step explanation:
Slope form: y2-y1/x2-x1
4-8/-4-10 ==> -4/-14 ==> 2/7
A child released a balloon into the air 45 minutes ago, and the air forced the balloon to travel 5 miles before another child found it. At what speed did the balloon travel?
HELPP ME PLEASE ITS DUE TODAYY!!!!!
Answer:
add a point 4 units to the left
Step-by-step explanation:
Answer:
Add a point 5.5 units right of 1
Step-by-step explanation:
I used a ruler, and found out that the distance between 0 and 1 is 1cm. The distance between 0 and x is 2.5cm. Since x is to the left of 0, x = 2.5.
4 - -2.5 = 4 + 2.5 = 6.5, or 6.5 units right of 0, which is the same as 5.5 units right of 1.
Jason bought a total of 20 medium and large pumpkins. If he bought 6 more large pumpkins as medium pumpkins, how many large pumpkins did he buy?
Answer:
26 large pumpkins
Step-by-step explanation:
please help :) i will give brainlyest
Answer:
7
Step-by-step explanation:
Drag one of the arrows from -6 to 7
A rectangular park measures 100m by 60m. A path of constant width is to be paved around the perimeter. The mayor wants to ensure that the resulting area is 6400m2. Find the width of the path. (Round to the nearest tenth.)
Answer: 20
Step-by-step explanation:
First let's find the perimeter: 2(l+w) = 2 (100 + 60) = 2 (160) = 320m
Now let's divide 6400 by 320 = 20 metres
The constant width of the path is 20 m.
What is Area?Area is the entire amount of space occupied by a flat (2-D) surface or an object's shape. The area of a plane figure is the area that its perimeter encloses. The quantity of unit squares that cover a closed figure's surface is its area.
Length of park = 100 m
Breadth of park = 60 m
As, the area including the path = 6400 m²
Area of path + Area of width = 6400 m²
100 x 60 + Area of width = 6400
Area of width = 400 m²
Area of width = 20 x 20 m²
Thus, the width of path is 20 m.
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I need helppp what’s the answerrr?!!?
Answer:
3,240
Step-by-step explanation:
The area of a triangle is 2x^2 - 11x + 15 square meters. The length of the base of the triangle is 2x-5
meters. What is the height of the triangle?
Answer:
of triangle =12base×height
Area of triangle =2x2−11x+15
base =2x−5
Plugging in the given;
2x2−11x+15=12(2x−5)×height
2x2−11x+15=2x−52×height
2x2−11x+151=2x−52×height
2(2x2−11x+15)=(2x−5)×height
4x2−22x+30=(2x−5)×height
4x2−22x+302x−5=height
Resolving the quadratic equation;
(4x2−22x+30)
Simplifying;
4x
Answer:
2x-6
Step-by-step explanation:
height : 2(2x^2-11x+15)/(2x-5)
(4x^2-22x+30)/(2x-5)
Δ/4 = 121 - 120 = 1
x1 = (11+1)/4 = 3
x2 = (11-1)/ 4 = 5/2
4(x-5/2)(x-3)
(4x-10)(x-3)/(2x-5)
2(2x-5)(x-3)/(2x-5)
2x-6
Proof
(2x-6)(2x-5)/2
2(x-3)(2x-5)/2
2x^2-5x-6x+15
2x^2-11x + 15
Give three Consecutive iintegers in descending order such that (-4) is the smallest
Answer:
-2, -3, -4Step-by-step explanation:
Three consecutive integers in descending order are:
-2 > -3 > -4Status
eview
А
D
C
ZABC is bisected by BD. If m2DBC = 65°,
then m ABC = [ ? °
Enter
I’ll mark whoever helps brainliest
can someone please help me with this question? (no links!)
Answer:
75 degrees
Step-by-step explanation:
angles 6 and angle 2 are congruent/corresponding, so they have the same angle measure
Hope this helped! Have a nice day, and feel free to follow me on insta (leo_g_rios)
-
Answer:
75
Step-by-step explanation:
they the same
Somebody please help me
Answer:
169 [tex]cm^2[/tex]
Step-by-step explanation:
The surface area is the two-dimensional distance around a figure. In essence, if one was going to wrap the figure in paper, the surface area would be the amount of paper one would need. To find the surface area, one would have to find the area of each individual face, and add up the values.
(7) * (5) = (35)
(9) * (5) = (45)
(7) * (5) = (35)
([tex]\frac{1}{2}[/tex]) * (6) * (9) = (27)
([tex]\frac{1}{2}[/tex]) * (6) * (9) = (27)
Add up all of the values:
(35) + (45) + (35) + (27) + (27) = 169
James has dimes and quarters saved up in his change jar. He has a total of 162 coins totaling $31.20. James has dimes
The question is incomplete:
James has dimes and quarters saved up in his change jar. He has a total of 162 coins totaling $31.20 what is the total amount james has in quarters?
a. $10.00
b. $6.20
c.$15.50
d.$25.00
Answer:
d.$25.00
Step-by-step explanation:
With the information provided, you can write the following equations given that dimes are equal to 0.10 and quarters to 0.25 to determine the number of dimes and quarters that James has:
x+y=162 (1)
0.10x+0.25y=31.20 (2), where:
x is the number of dimes
y is the number of quarters
First, you can solve for x in (1):
x=162-y (3)
Then, you have to replace (3) in (2) and solve for y:
0.10(162-y)+0.25y=31.20
16.2-0.10y+0.25y=31.20
0.15y=31.20-16.2
0.15y=15
y=15/0.15
y=100
Finally, you have to replace the value of y in (3) to find x:
x=162-100
x=62
Now, you know that James has 100 quarters and you can multiply this number for the value of a quarter to find the amount James has in quarters:
100*0.25=25
According to this, the answer is that James has $25 in quarters.
30 points!!! Find the area of each. Round to the nearest tenth. Do not include units in
your answer (ie. ft, in, km, etc)(triangle-FR) *
Answer:
Area of triangle = 8.9
Area of parallelogram = 53.4 yd² (option A)
Step-by-step explanation:
✔️Area of the triangle = ½*base*height
base = 3 m
height = 5.9 m
Area of triangle = ½*3*5.9
Area of triangle = 8.85 ≈ 8.9 (nearest tenth)
✔️Area of parallelogram = base*height
base = 8.9 yd
height = 6 yd
Area of parallelogram = 8.9*6 = 53.4 yd²
please help me i dont have a lot of time left
Answer:
its 20 degrees
Step-by-step explanation:
vertical angles makes it 20degrees
If a car drives 250 miles in 4 hours, how many miles does the car drive per hour?
Answer:
62.5 miles per hour
Step-by-step explanation:
Answer:62.5 miles an hour
Step-by-step explanation: You would divide 250 by 4.
Why is the number that satisfies this equation not a real number?
x^2=--1
Answer:
I assume that says [tex]x^2=-1[/tex], but that is the case because when we square a number, we can NEVER get a negative number. The smallest square we can get is 0. 1^2 is 1, and no real number squared gives us a negative number.
Step-by-step explanation:
What is the value of x ??
Answer:
b. 8
Step-by-step explanation:
Polynomial form? the numbers to the side are confusing
Answer:
x^2 + 11x + 18.
Step-by-step explanation:
The length = x + 9 and the width = x + 2.
So the area
= length * width
= (x + 9)(x + 2)
= x(x + 2) + 9(x + 2)
= x^2 + 2x + 9x + 18
= x^2 + 11x + 18.
Mom can make 10 brounies in a 12 ounce pacge the bags are sold in one and a half bag how much would she need to make 120
Answer:
Question is: Mom can make 10 brownies from a 12-ounce package. The brownie mix is also sold in 1 and a half-pound bags. How many bags would be needed to make 120 brownies?
Step-by-step explanation:
As mentioned in question,
10 brownies made from = 12 ounce package
120 brownies will be made from = 10 * 12 packages
now 12 packages will have ounces = 12 * 12 = 144 ounces
We also know that packages are one and a half pounds
Applying conversion factor = 1.5 pound = 24 ounces
Now we can find answer: 144 ounces total requires / 24 ounces
Answer = 6 bags
6 bags of 1.5 pounds will be required for 120 brownies.
Write the equation y = -2(x + 1)2 + 3 in standard form.
ax^2+bx+c is the standard form
A tree that is 4 ft tall is growing at a rate of 1 ft each year a tree that is 12 feet tall is growing at a rate of 1/2 ft each year how many years will it take the two trees to reach the same height
Answer:
16 years
Step-by-step explanation:
Given data
For the first tree
let the expression for the height be
y=4+x--------------1
where y= the total height
4= the initial height
x= the number of years
For the second tree, the expression is
y=12+0.5x-------------2
Equate 1 and 2
4+x=12+0.5x
x-0.5x=12-4
0.5x= 8
x= 8/0.5
x=16
Hence it will take 16 years for both trees to have the same height
sarah and janie both have lollipops. Janie has 36 lollipops. This is 9 times as many as sarah. How many lollipops does Sarah have
Answer:
4
Step-by-step explanation:
Hello,
36 / 9 = 4
6. Find the values of x and y.
Drawing not to scale
Answer:
y=31°
x=90
step
y=180-59-90
=31
x=90
the length of a rectangle is 1/4 ft. it's width is 1 1/2 ft. what is the perimeter?
Answer
11.5 ft
Step-by-step explanation:
Perimeter of rectangle:2(l+w)
l :1/4 ft w:11/2 ft
2(1/4+11/2)=11.5
Step-by-step explanation:
11/8 is the answer.
( I am not sure about my answer so I am extremely sorry:/ )
please help me im struggling
Answer:
it's. -7 -2
7 0
Step-by-step explanation:
because to find X we have to add B with A
X-A=B
or,X=B+A